Home / 7,343.82-10,134.20-3,986.55

Finding the Fourth Proportional to 7,343.82, 10,134.20 and 3,986.55

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Solution

The fourth proportional to 7,343.82, 10,134.20 and 3,986.55 is: 5,501.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,343.82 : 10,134.20 = 3,986.55 : x
  2. Step 2: Convert to fraction form
    7,343.82/10,134.20 = 3,986.55/x
  3. Step 3: Cross multiply
    7,343.82x = 10,134.20 × 3,986.55
  4. Step 4: Simplify right side
    7,343.82x = 40,400,475.08
  5. Step 5: Solve for x
    x = 40,400,475.08/7,343.82
  6. Step 6: Final answer
    x = 5,501.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.